Coupled Resonators with sinusoidal coupling

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I have two coupled resonators with complex resonance frequencies of $\beta_1$ and $\beta_2$. The coupling between them is varying sinusoidal with time. The time-evolution of their resonant mode field ($A,B$) can be written as:

$$\frac{dA}{dt} = \iota\beta_1 A + \iota [\gamma\sin(\Omega t)]) B$$

$$\frac{dB}{dt} = \iota\beta_2 B + \iota [\gamma\sin(\Omega t) ] A$$

I want to get a comprehensive solution of this differential equation. I tried to look for books where periodic differential equations are explained but no success so far. Any idea how to find an exact solution of the differential equations above? $\beta_1$, $\beta_2$, $\Omega$, and $\gamma$s are constants.

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Write your system under its matrix form :

$$\pmatrix{\frac{dA}{dt} \\ \frac{dB}{dt} }= \iota \underbrace{\pmatrix{\beta_1 & \gamma\sin(\Omega t)\\\gamma\sin(\Omega t) & \beta_2}}_M\pmatrix{A\\B}$$

whose solution (extension of the classical scalar ODE : $y'(t)=my(t) \implies y(t)=\exp(mt).y(0) $) is

$$\pmatrix{A\\B}=\exp(\iota M)\pmatrix{A_0\\B_0}$$

where $A(0),B(0)$ are the initial values.

If you work with Matlab, matrix exponentiation is done by "expm" function.